On Sun, Jun 19, 2005 at 11:23:37AM +0200, Mikael Pettersson wrote:
> On Sun, 19 Jun 2005 11:50:03 +1000, Keith Owens wrote:
> >Compiling 2.6.12 with gcc 4.0.0 (FC4) gets lots of warnings for the
> >programs in the scripts directory. Add -Wno-pointer-sign to HOSTCFLAGS
> >to suppress them.
> >
> >Signed-off-by: Keith Owens <[email protected]>
> >
> >Index: 2.6.12/Makefile
> >===================================================================
> >--- 2.6.12.orig/Makefile 2005-06-18 15:21:18.000000000 +1000
> >+++ 2.6.12/Makefile 2005-06-19 11:43:15.876218980 +1000
> >@@ -204,6 +204,8 @@ CONFIG_SHELL := $(shell if [ -x "$$BASH"
> > HOSTCC = gcc
> > HOSTCXX = g++
> > HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer
> >+# disable pointer signedness warnings in gcc 4.0
> >+HOSTCFLAGS += $(call cc-option,-Wno-pointer-sign,)
> > HOSTCXXFLAGS = -O2
>
> Please don't. Bogus code should be fixed, not hidden.
cc-option checks to see if the flag is supported by $(CC) which could
be a completely different compiler from $(HOSTCC). Hence the above
can incorrectly supply/fail to supply the argument.
--
Russell King
Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/
maintainer of: 2.6 Serial core
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